Grubbing-plow.



G.D.JAUER GRUBBING PLOW.

APPLIGA'IIQLT FILED FEB, 11, 1909. .I

Patented Apr. 5, 1910.

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allow 2 HAM sow PMOWLIWQGRANERE WASHINGTON at;

- 'Illlllllllllllllllllllllllllllll 0J1). 'JAUERL GRUBBING PLOW.APPLICATION nun FEB. 11,1909.

Patented Apr. 5, 1910;

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ANDREW a. GRAHAM 00-. FNUTOLTYHDGRAPNERS, WAEKINQWN, DJ;

CHRISTI/IAN D. JAUER, OF KARNES CITY, TEXAS.

GRUBBING-PLOW.

Specification of Letters Patent.

Patented Apr. 5, 1910.

Application filed February 11, 1809. Serial No. 477,266.

To all whom it may concern:

Be it known that I, CHRISTMAN D. J AUER, a citizen of the United States,residing at Karnes City, in the county of Karnes and State of Texas,have invented a new and useful Grubbing-Plow, of which the following isa specification.

The invention relates to a grubbing plow.

The object of the present invention is to provide a simple, efiicientand comparatively inexpensive grubbing plow, designed for preparing landfor cultivation after the land has been cleared of timber, and adaptedto operate effectively in sections. of country where there isconsiderable underbrush, and capable of splitting and tearing the stumpsto pieces and of severing the underbrush at the throat of the plow toprevent the latter from becoming clogged.

Another object of the invention is to provide a grubbing plow of thischaracter, designed to be operated in a gang in connection with atraction engine, and capable of following the same in a straight linewithout liability of slipping sidewise around and thereby passing astump.

With these and other objects in view, the invention consists in theconstruction and novel combination of parts hereinafter fully described,illustrated in the accompanying drawings, and pointed out in the claimshereto appended; it being understood that various changes in the form,proportion, size and minor details of construction, within the scope ofthe claims, may be resorted to without departing from the spirit orsacrificing any of the advantages of the invention.

In the drawings :-Figure 1 is. a perspective view of a grubbing plow,constructed in accordance with this invention. Fig. 2 is a longitudinalsectional view of the same. Fig. 3 is a transverse sectional view on theline 8-3 of Fig. 2. Fig. 4 is a similar view on the line 4- of Fig. 2.Fig. 5 is a plan view of a traction engine and a gang of grubbing plows,illustrating the arrangement of the latter. Fig. 6 is a detail perspective view of the vertical blade and plow points. Fig. 7 is a similarview of one of the side plates of the plow. Fig. 8 is a similar view ofthe intermediate spacing plate. Fig. 9 is a perspective view of one ofthe plowshares. Fig. 10 is a detail View of the plow point. Fig. 11 is areverse plan view, showing a portion of the plowshares and illustratingthe arrangement of the op posite teeth. Fig. 12 is a plan view of a portion of one of the plowshares. Fig. 13 is a sectional view on the line1313 of Fig. 12.

Like numerals of reference designate corresponding parts in all thefigures of the drawings.

1 1 designate vertically disposed forwardly tapered side plates,constructed of steel and spaced apart by an intermediate plate 2, alsotapered forwardly and preferably constructed of the same material as theside plates, and spacing the latter for the reception of a plow point 3and a vertical cutting blade 4, formed integral with the plow point andsecured between the side'plates by suitable fastening devices. Inpractice, the plow point and the blade will be removable to enable themto be readily detached for sharpening. The plow point is taperedforwardly and is provided at the rear end with shoulders 23 which fitagainst corresponding edges of the side plates. The blade 4 is providedwith a lower enlarged portion, having a rearward extension 5, forming atapering recess 6 in which fits a toe or extension 7 of the intermediateplate 2, whereby the blade is interlocked with the intermediate plate,as clearly illustrated in Fig. 2 of the drawings. The side andintermediate plates are secured together by rivets, or other suitablefastening devices, and the front edge of the intermediate plate isrecessed or cut-away to receive the blade 4 and conformed to theconfiguration thereof and forms a seat for the same. The lower edges ofthe front portions of the intermediate and side plate and the lower edgeof the plow points are arranged flush and form a straight horizontalbottom edge at the front of the plow in advance of the plowshares 8.

The plowshare is not claimed in the present application, as it forms thesubject-matter of my co-pending application, No. 527,337, filed Nov. 10,1909.

The plowshares 8, which are designed to be constructed of tool steel, orother suitable material are disposed horizontally and tapered forwardly,being of substantially triangular shape and having angularly disposedouter side edges, the outer edges eonverging forwardly, as clearlyillustrated in Fig. 9 of the drawings. The inner edges are provided withvertical longitudinal flanges 9, arranged between the side plates, andsecured to the same by transverse bolts 9 which plates are provided atthe rear portions of their lower edges with outwardly extendinghorizontal flanges 10, tapered forwardly and having the plowsharessecured to them by suitable fastening devices 11. The plowshares arefitted against the lower faces of the laterally projectinglongitudinally disposed flanges 10, and in practice they will be removedtherefrom for the purpose of sharpening their outer edges.

The outer edges of the plowshares are equipped with horizontallydisposed forwardly projecting teeth 12, extending outward at an angle tothe median line of the plow, and arranged at regular intervals, theteeth at one side of the plow being located directly opposite the teethat the other side of the plow so that but two teeth at a time will enterthe wood of the stump, thereby enabling the plow to be operated withcomparatively little force. In practice the teeth may be arranged anydistance apart and may be of any desired size and together with theupwardly extending cutting flanges 12 will be varied to suit thecharacter of the wood to be operated on.

The blades or flanges 12, which taper forwardly, are provided with uppercutting edges and are disposed in parallelism with each other and withthe plane of the median line of the plow. The blades or flanges 12 arelocated in rear of the front edges of the teeth at the outer sides ofthe latter. hen the plow strikes a stump, the point will penetrate thesame and the teeth of the plowshares will cut a horizontal kerf in thestump, while the upwardly extending blades, which operate longitudinallyof the grain, sever and pull out the fibers of wood at the points cut bythe teeth, and the stump is thereby torn up and pulled to pieces. Theplow is designed to operate on stumps up to eight inches in diameter.

The lower edge 13 of the intermediate plate projects below theplowshares, as clearly illustrated in Figs. 3 and 41 of the drawings,and it is covered by a semi-tubular bottom strip 14, approximatelyU-shaped in cross section and incasing the projecting bottom edge of theintermediate plate. The strip or casing 14 is hinged at the front to theintermediate plate by a pivot 15 and it is adapted to be swung out ofthe way to facilitate the removal of the plowshares. The rear end of thestrip or casing 1a is connected with an upwardly extending bar 15,located at the back of the plow and piV- oted at its lower end to thecasing 14 and secured at its upper end to an car 16 of the intermediateplate, but it may be attached in any other desired manner.

The upper portions of the plates are socured between spaced longitudinalbars 17, which constitute the plow beam. The bars 17 are preferably inthe form of channel iron bars to secure strength and lightness, but theymay be of any other configuration and they are spaced apart by means ofplates and by inclined braces 18, extending forwardly and upwardly fromthe plow at the upper end of the blade 4 to the front portion of theplow beam and secured at their trout terminals between the same. Theplow is also equipped with side braces 19, located at opposite sides ofthe plow beam and converging forwardly, the front ends of the bracesbeing secured to opposite sides of the plow beam, and the rear end ofthe braces 19 being fastened to brackets 20. The brackets 20. which areconstructed of suitable metal, consist of a horizontal portion 21., andinner and outer portions or flanges 22 and 23, the inner portion 22extending downward from the horizontal portion and secured to thecontiguous side plate, and the outer portion 23 being extended upwardfrom the horizontal portion and having the rear end of the brace 19secured to its in ner face. By this construction the plow is thoroughlyb 7a ced.

The side plate and the intermediate plate constitute a standard andextend above the upper end of the blade 4. The plow is equipped at theupper end of the blade with a movable cutter 2a, cooperating with theupper portion of the blade and operating between or on side of theinclined braces or brace and adapted to sever the underbrush collectingin the throat of the plow at the crotch, formed by the inclined bracesand the blade 1-, whereby the plow is kept clear and is prevented fromcollecting underbrush and becoming clogged by the same. The knife 2%,which is pivoted at its rear end to the plow by a suitable pivot 25, isconnected by a pivot 26 to the lower end of the link or connecting bar27, extending upwardly from the movable cutter or knife 24 through thespace between the bars of the plow beam to the oscillatory lever 28. Theoperating lever 28 is fulcrumed at its rear end on the plow standard,the intermediate. plate being provided with an upwardly projecting car29 through which the fulcrum pivot 30 passes. The front end of the lever28 is connected by a link or pitman 31 with a crank element 32, mountedon a shaft 33. The shaft 33, which is journaled in suitable bearings ofspaced supports 34 and 35, carries a sprocket wheel 36, located abovethe plow beam and adapted to receive a sprocket chain 37, as illustratedin dotted lines in Fig. 1 of the drawings. The supports 34 and 35 extendupwardly from the plow beam, the support 35 being interposed between thebars 17 and assisting in spacing the same. Vhen the sprocket wheel isrotated motion is communicated through the crank connection to the lever28, which oscillates the movable knife or cutter 24. Any brush or otheraccumulation collecting at the throat of the plow will be severed by theshearing action of the cutter 24.

The plow beam is equipped at its front with an adjustable cl-evis 38,and is adapted to run either deep or shallow, it being designed tooperate from a depth of eight to twelve inches. The plows are designedto be operated in gangs of three or five or more, and are alternatelyarranged in rear of a traction engine 39, as illustrated in Fig. 5. Theyare connected with the traction engine by an attachment comprising aframe 40, mounted on an axle 41 and connected by links 42, or othersuitable means to the traction engine. The axle 41, which is equippedwith wheels 43, carries a sprocket wheel 44 for communicating motion toa counter shaft 4L5. The wheels 43 are arranged within the frame 40, andthe sprocket wheel 44 receives a sprocket chain, which extends to asuitable sprocket wheel on the counter shaft, but any other form ofgearing may be employed for imparting action from the axle to thecounter shaft 45.

The attachment forconnecting the plows with the traction engine isprovided with an approximately U-shaped hitching frame l6, composed oftwo sides and a rear connecting portion with which the plow beams areconnected. The front plows, which are preferably three in number, asshown, and the rear plows, which are two in number, have extended beamsand are connected with the attaching frame 46 at the back thereof in thesame transverse plane as the beams of the front plows. The attachingframe 46 is pivotally connected with the frame of the attachment bymeans of a transverse rod 47, and in practice, suitable means will beprovided for raising and lowering the rear portion of the attachingframe. The attaching frame is designed to be raised to cause the plowsto travel on their heels, when it is desired to transfer them from onepoint to another. The rear portions of the plows are connected bysuitable links, and the links of the front plows extend beneath thebeams of the rear plows.

Motion is communicated from the counter shaft 45 to the sprocket wheelsof the several plows of the gang by means of sprocket chains 37 andsprocket wheels 48. Owing to the particular construction of plow it willtravel in a straight line in rear of the traction engine and will notslide off laterally and pass around the stumps, but will eifectivelysplit the same. The stumps and brush are collected and are designed tobe burned after the plow passes over the land. After the land has beenoperated on by the grubbing plow, it is ready for cultivation by a diskplow or an ordinary turning plow.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent, is:

l. A plow of the class described including a thin point arranged topenetrate and split a stump, and laterally extending horizontallydisposed plowshares located in rear of the said point and provided withteeth arranged to cut and tear up a stump.

2. A. plow of the class described including a relatively thin verticallydisposed forwardly tapered point arranged to pierce and penetrate astump, and a horizontally disposed tapering plowshare located in rear ofthe plow point and provided with teeth arranged to cut and tear up thewood of the stump.

3. A plow of the class described including a vertically disposedforwardly tapered point, a vertical blade having an inclined cuttingedge extending upwardly and rear wardly from the point, and a horizontalplowshare provided with teeth arranged to cut and tear up the wood of astump.

4. A plow of the class described including a thin tapered point set in avertical plane, and thin forwardly tapered plowshares arrangedhorizontally at opposite sides of the point.

5. A plow of the class described including a thin tapered point set in avertical plane, and thin forwardly tapered plowshares arrangedhorizontally at opposite sides of the point, the side edges of theplowshares converging and provided with teeth.

6. A plow of the class described including opposite horizontallydisposed plowshares having angularly related outer side edges, said sideedges being provided at intervals with teeth, and the teeth at oneplowsharo being arranged opposite those of the other plowshare, and arelatively thin plow point extending in advance of the plowshares andarranged to split a stump.

7. A plow of the class described including a vertically disposed plowpoint, a vertically disposed blade having a cutting edge inclinedupwardly from the plow point, and horizontally disposed forwardlytapered plowshares provided at intervals with approximately horizontalteeth and having upwardly extending tapered flanges located in rear ofthe front edges of the teeth.

8. A plow of the class described including spaced side plates, anintermediate plate secured between the side plates, a blade fittedbetwecn the side plates and interlocked with the intermediate plate andprovided with a plow point. i

S). A plow of the class described including side plates provided withlaterally extending flanges, a plow point secured between the sideplates, and plowshares secured to the flanges of the side plates.

10. A plow of the class described including side plates provided withlaterally extending flanges, an intermediate plate, and plowsharessecured to the laterally extend ing flanges of the side plates andprovided with vertical flanges fitted between the side plates.

11. A plow of the class described including side plates having forwardlytapered portions, an intermediate plate also tapered and arrangedbetween the side plates and terminating at the front end in a taperingtoe, a blade secured between the side plates and provided with anenlargement having a recess receiving the said toe, said blade beingalso provided with a plow point fitted against the front ends of theside plates.

12. A plow of the class described including side plates provided withlaterally projecting flanges, an intermediate plate arranged between theside plates and projecting below the flanges, plowshares secured to thesaid flanges, a strip incasing the pro jecting portion of theintermediate plate and hinged at one end, and means for securing theother end of the strip to the plow.

18. A plow of the class described includ ing side plates provided withlaterally projecting flanges, an intermediate plate arranged between theside plates and projecting below the flanges, plowshares secured to thesaid flanges, a strip incasing the projecting edge of the intermediateplate and hinged at its front end to the same, and an upwardly extendingbar pivoted at its lower end to the strip and secured at its upper endto the plow.

1 1. A plow of the class described including a. plow beam composed ofspaced bars, plates arranged vertically and extending between the rearportions of the said bars, plowshares extending from the said plates andarranged for cutting stumps, inclined braces extending from the platesto the front portion of the beam, brackets secured to the plates andextending laterally therefrom to the rear portion of the beam, andangularly disposed braces secured to the brackets and extending to thefront portion of the beam.

15. A plow of the class described including a plow beam composed ofspaced bars, plates arranged vertically and extending between the rearportions of the said bars, plowshares extending from the said plates andarranged for cutting stumps, inclined braces extending from the platesto the front portion of the beam, brackets located at opposite sides ofthe plates and having depending inner attaching portions and outwardlyextending upper flanges, the inner portions being secured to the saidplates, and fmrwardly converging braces extending from the said flangesto the front portion of the beam.

16. A plow of the class described including a beam, a vertical standardconnected at the top with the beam and having a front inclined edge,'ilowshares extending from opposite sides of the standard and arrangedfor cutting stumps, a movable blade arranged at the throat formed by theplow and the standard, andv means for operating the movable blade forcutting underbrush and the like.

17. A. plow of the class described includ ing a beam, a verticalstandard connected at the top with the beam and having a front inclinededge, plowshares extending from opposite sides of the standard andarranged for cutting stumps, a fixed inclined blade extending along theinclined edge of the standard, a movable blade arranged at the throatformed by the plow and the standard and cooperating with the fixed bladeto cut underbrush and the like, and means for operating the movableblade.

18. A plow of the class described including a beam, a vertical standardconnected at the top with the beam, plowshares extending from oppositesides of the standard and arranged for cutting stumps, a movable bladearranged at the throat formed by the plow and the standard, a leverconnected with the movable blade, a crank element for operat ing thelever, and means for actuating the crank element.

15). A plow of the class described including a. beam, a verticalstandard connected at the top with the beam, plowshares extending fromopposite sides of the standard and arranged for cutting stumps, amovable blade arranged at the throat formed by the plow and thestandard, a lever located above the beam and fulcrumed at its rear end,a link connecting the lever with the movable blade, a crank elementmounted on the beani at the front portion thereof and connected with thefront end of the lever, and gearing for rotating the crank element.

20. A plow of the class described including a beam having spaced bars, avertical standard secured between the spaced bars and having its frontedge arranged at an angle to the beam for forming a throat, plowsharesextending from opposite sides of the standard and arranged for cuttingstumps, a lever extending longitudinally of the beam and fulcrumed atits rear end, a link extending through the space between the shaft, anda crank element carried by the Vitnesses:

the bars and connecting the cutter with the lever, spaced bearingscarried by the front portion of the beam, a shaft journaled in ."thebearings, a sprocket Wheel mounted on as my own, I have hereto aflixedmy signal ture 1n.the presence of tWo wltnesses.

CHRISTMAN D. JAUER.

shaft and connected with the lever.

C. L. BELL, In testimony, that I claim the foregoing D. O. KLINGEMANN.

